package com.leyou.item.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.leyou.common.utils.JsonUtils;
import com.leyou.item.dto.SpecParamDTO;
import com.leyou.item.entity.Spu;
import com.leyou.item.entity.SpuDetail;
import com.leyou.item.mapper.SpuDetailMapper;
import com.leyou.item.mapper.SpuMapper;
import com.leyou.item.service.SpecParamService;
import com.leyou.item.service.SpuDetailService;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;


@Service
public class SpuDetailServiceImpl extends ServiceImpl<SpuDetailMapper, SpuDetail> implements SpuDetailService {


    private final SpuMapper spuMapper;

    private final SpecParamService paramService;

    public SpuDetailServiceImpl(SpuMapper spuMapper, SpecParamService paramService) {
        this.spuMapper = spuMapper;
        this.paramService = paramService;
    }

    @Override
    public List<SpecParamDTO> querySpecValues(Long id, Boolean searching) {

        // 1.准备规格参数value
        // 1.1.根据id (是tb_spu_detail中的spu_id) 查询spuDetail
        SpuDetail detail = getById(id);
        // 1.2.获取其中的规格参数键值对（specification字段），转为一个map
        Map<Long, Object> specValues = JsonUtils.toMap(detail.getSpecification(), Long.class, Object.class);

        // 2.准备规格参数对象
        // 2.1.根据id查询spu，获取商品分类信息
        Spu spu = spuMapper.selectById(id);
        // 2.2.根据分类id查询规格参数集合，如果searching不为空，还要加上searching条件
        List<SpecParamDTO> params = paramService.queryParams(spu.getCid3(), null, searching);
        System.out.println("params = " + params);

        // 3.找到param的value，并存储
        for (SpecParamDTO param : params) {
            param.setValue(specValues.get(param.getId()));
            System.out.println("param = " + param);
        }
        System.out.println("params = " + params);
        return params;
    }
}
